According to http://nvie.com/posts/a-successful-git-branching-model/

A repository is expected to contain at least two branches: master and develop. Should we make VersionForRepositoryFinder throw if

• At least one of them doesn't exist?
• The branch develop didn't initially branch off of master?

The above post use some lax wording regarding the constraints (eg. A feature branch may branch off from develop). Should we enforce such constraints

• Make HotfixVersionFinder throw if the examined branch doesn't branch off of master?
• Make ReleaseVersionFinder and FeatureVersionFinder throw if the examined branch doesn't branch off of develop?

The LibGitExtensions.GetBranch() performs a fetch from the first remote found if a specified branch cannot be found locally. Why do we need such behavior? In which context/environment is that triggered?